215292564955 has 16 divisors (see below), whose sum is σ = 282376844064. Its totient is φ = 156612360960.

The previous prime is 215292564941. The next prime is 215292564967. The reversal of 215292564955 is 559465292512.

It is not a de Polignac number, because 215292564955 - 2¹¹ = 215292562907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215292564896 and 215292564905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24713506 + ... + 24722215.

It is an arithmetic number, because the mean of its divisors is an integer number (17648552754).

Almost surely, 2^215292564955 is an apocalyptic number.

215292564955 is a deficient number, since it is larger than the sum of its proper divisors (67084279109).

215292564955 is a wasteful number, since it uses less digits than its factorization.

215292564955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49435806.

The product of its digits is 9720000, while the sum is 55.

The spelling of 215292564955 in words is "two hundred fifteen billion, two hundred ninety-two million, five hundred sixty-four thousand, nine hundred fifty-five".